How much is 5ml of promethazine?

The amount of promethazine in 5 mL depends on the concentration of the solution. Common concentrations are 6.25 mg/mL, 12.5 mg/mL, or 25 mg/mL. Therefore, 5 mL could contain 31.25 mg, 62.5 mg, or 125 mg of promethazine, respectively. Always check the specific concentration on the medication label for accurate dosing.